#310902
Closest named color: Dark Maroon (#3C0008). oklch(21.2% 0.067 35.2), rgb(49, 9, 2).
Aa
White text reads best on this color (17.94:1).
About this color
#310902 is a very dark, muted red. In OKLCH its lightness is 21%, its chroma 0.067 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.034 away. White text reads best on it, at 17.94:1.
| Hue family | Reds |
| Lightness | very dark (21%) |
| Chroma | muted (0.067) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.17:1 |
| White text | 17.94:1 |
Values
| HEX | #310902 |
| RGB | rgb(49, 9, 2) |
| HSL | hsl(9, 92%, 10%) |
| OKLCH | oklch(21.2% 0.067 35.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #310902 | 17.94:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #310902 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #310902 text on white | 17.94:1 | AAA | Lc 104.2 | Preferred for body text |
| #310902 text on black | 1.17:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F9E5E0
oklch(93.7% 0.023 34.3)
-
Step 200
200
#F5D0C6
oklch(88.6% 0.044 35.6)
-
Step 300
300
#EFAF9E
oklch(80.9% 0.079 35.4)
-
Step 400
400
#E48269
oklch(70.8% 0.127 35.2)
-
Step 500
500
#D95E3F
oklch(63.1% 0.162 35.3)
-
Step 600
600
#C53F1B
oklch(55.7% 0.177 35.2)
-
Step 700
700
#AA2F0B
oklch(49.2% 0.165 35.1)
-
Step 800
800
#8A290F
oklch(42.8% 0.136 35.2)
-
Step 900
900
#6F2715
oklch(37.7% 0.107 35.1)
-
Step 950
950 (this color)
#310902
oklch(21.2% 0.067 35.2)
#310902 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #151101 | 0.069 |
| Deuteranopia (no green cones) | #1F1A01 | 0.062 |
| Tritanopia (no blue cones) | #370107 | 0.025 |
| Achromatopsia (no color) | #171717 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310902
#310902
oklch(21.2% 0.067 35.2)
- #001D23
#001D23
oklch(21.2% 0.037 213.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #310902, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.034
- Deep Brown #410200 ΔE 0.038
- Dark Brown #341C02 ΔE 0.053
- Mahogany #4A0100 ΔE 0.060
- Chocolate Brown #411900 ΔE 0.060
- Very Dark Brown #1D0200 ΔE 0.062
- Dark Plum #3F012C ΔE 0.087
- Jet #212529 ΔE 0.091
Use #310902 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.